Home / 28,212.47-42,251.40-16,341.15

Finding the Fourth Proportional to 28,212.47, 42,251.40 and 16,341.15

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Solution

The fourth proportional to 28,212.47, 42,251.40 and 16,341.15 is: 24,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,212.47 : 42,251.40 = 16,341.15 : x
  2. Step 2: Convert to fraction form
    28,212.47/42,251.40 = 16,341.15/x
  3. Step 3: Cross multiply
    28,212.47x = 42,251.40 × 16,341.15
  4. Step 4: Simplify right side
    28,212.47x = 690,436,465.11
  5. Step 5: Solve for x
    x = 690,436,465.11/28,212.47
  6. Step 6: Final answer
    x = 24,472.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.